草业学报
草業學報
초업학보
PRATACULTURAL SCIENCE
2014年
3期
362-367
,共6页
王升%王全九%周蓓蓓%吴军虎%史文娟%罗小东
王升%王全九%週蓓蓓%吳軍虎%史文娟%囉小東
왕승%왕전구%주배배%오군호%사문연%라소동
膜下滴灌%间作%盐生植物%盐碱地%改良
膜下滴灌%間作%鹽生植物%鹽堿地%改良
막하적관%간작%염생식물%염감지%개량
drip irrigation under film%interplanting%halophyte%saline-alkali soil%improvement
通过在膜下滴灌棉田膜间空地上间作盐生植物,探求对盐碱地的改良效果。结果表明,生育期内间作碱蓬和盐角草小区的平均含水量比对照小区大61.0%和34.1%,显著地提高土壤脱盐率,脱盐率分别为43.1%(碱蓬),30.6%(盐角草)和17.2%(对照),且间作提高了K+/Na+,降低了对作物有毒害作用的Cl-含量,并使土壤容重下降,孔隙度增加,最终棉花产量也得到提高。表明在不增加耗水的条件下,棉田间作盐生植物是一种有效地改良盐碱地的措施。
通過在膜下滴灌棉田膜間空地上間作鹽生植物,探求對鹽堿地的改良效果。結果錶明,生育期內間作堿蓬和鹽角草小區的平均含水量比對照小區大61.0%和34.1%,顯著地提高土壤脫鹽率,脫鹽率分彆為43.1%(堿蓬),30.6%(鹽角草)和17.2%(對照),且間作提高瞭K+/Na+,降低瞭對作物有毒害作用的Cl-含量,併使土壤容重下降,孔隙度增加,最終棉花產量也得到提高。錶明在不增加耗水的條件下,棉田間作鹽生植物是一種有效地改良鹽堿地的措施。
통과재막하적관면전막간공지상간작염생식물,탐구대염감지적개량효과。결과표명,생육기내간작감봉화염각초소구적평균함수량비대조소구대61.0%화34.1%,현저지제고토양탈염솔,탈염솔분별위43.1%(감봉),30.6%(염각초)화17.2%(대조),차간작제고료K+/Na+,강저료대작물유독해작용적Cl-함량,병사토양용중하강,공극도증가,최종면화산량야득도제고。표명재불증가모수적조건하,면전간작염생식물시일충유효지개량염감지적조시。
To improve saline-alkali soil,the halophyte was interplanted in cotton fields through drip irrigation under film.The average water content in interplanted Suaeda salsa and Salicornia europaea were larger than those in the control plot by 61.0% and 34.1% respectively.The desalinizations were 43.1% (S.salsa), 30.6% (S.europaea)and 17.2 (control plot).The K+/Na+ ratio and the soil bulk density increased,while the Cl- and soil porosity decreased,and the cotton yield increased.This suggested that interplanting halophyte in cotton fields is a good option to improve saline-alkali soil,with no requirement for much more water.